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  • Title: [Callosal neurons: monosynaptic connection between them and their descending projections].
    Author: Ezrokhi VL, Tarasova LIu, Aleksandrov LI.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1985; 35(3):528-36. PubMed ID: 4036327.
    Abstract:
    Antidromic and monosynaptic unit responses to the stimulation of the corpus callosum and the symmetrical cortical area as well as antidromic responses to pyramidal tract and thalamic nuclei stimulation were recorded in the sensorimotor cortex of unanaesthetized rabbits. Out of 182 callosal neurones 13 exhibited transcallosal monosynaptic responses. 8 out of 56 callosal units responded antidromically to pyramidal tract or thalamic stimulation. Thus callosal neurones may be monosynaptically excited by callosal units via the corpus callosum and by the pyramidal tract units. It was also found that a pyramidal tract neurone may send a collateral through the corpus callosum and at the same time have a transcallosal monosynaptic input. The role of monosynaptic transcallosal excitation of callosal neurones is discussed.
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